1 files changed, 0 insertions, 76 deletions
diff --git a/browser/components/asrouter/content-src/components/ImpressionsWrapper/ImpressionsWrapper.jsx b/browser/components/asrouter/content-src/components/ImpressionsWrapper/ImpressionsWrapper.jsx
deleted file mode 100644
index 8498bde03b..0000000000
--- a/browser/components/asrouter/content-src/components/ImpressionsWrapper/ImpressionsWrapper.jsx
+++ /dev/null
@@ -1,76 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-import React from "react";
-
-export const VISIBLE = "visible";
-export const VISIBILITY_CHANGE_EVENT = "visibilitychange";
-
-/**
- * Component wrapper used to send telemetry pings on every impression.
- */
-export class ImpressionsWrapper extends React.PureComponent {
-  // This sends an event when a user sees a set of new content. If content
-  // changes while the page is hidden (i.e. preloaded or on a hidden tab),
-  // only send the event if the page becomes visible again.
-  sendImpressionOrAddListener() {
-    if (this.props.document.visibilityState === VISIBLE) {
-      this.props.sendImpression({ id: this.props.id });
-    } else {
-      // We should only ever send the latest impression stats ping, so remove any
-      // older listeners.
-      if (this._onVisibilityChange) {
-        this.props.document.removeEventListener(
-          VISIBILITY_CHANGE_EVENT,
-          this._onVisibilityChange
-        );
-      }
-
-      // When the page becomes visible, send the impression stats ping if the section isn't collapsed.
-      this._onVisibilityChange = () => {
-        if (this.props.document.visibilityState === VISIBLE) {
-          this.props.sendImpression({ id: this.props.id });
-          this.props.document.removeEventListener(
-            VISIBILITY_CHANGE_EVENT,
-            this._onVisibilityChange
-          );
-        }
-      };
-      this.props.document.addEventListener(
-        VISIBILITY_CHANGE_EVENT,
-        this._onVisibilityChange
-      );
-    }
-  }
-
-  componentWillUnmount() {
-    if (this._onVisibilityChange) {
-      this.props.document.removeEventListener(
-        VISIBILITY_CHANGE_EVENT,
-        this._onVisibilityChange
-      );
-    }
-  }
-
-  componentDidMount() {
-    if (this.props.sendOnMount) {
-      this.sendImpressionOrAddListener();
-    }
-  }
-
-  componentDidUpdate(prevProps) {
-    if (this.props.shouldSendImpressionOnUpdate(this.props, prevProps)) {
-      this.sendImpressionOrAddListener();
-    }
-  }
-
-  render() {
-    return this.props.children;
-  }
-}
-
-ImpressionsWrapper.defaultProps = {
-  document: global.document,
-  sendOnMount: true,
-};